Connecting part, a tool for producing a connecting part and fastening system having connecting part

Abstract

A connecting part (3) is formed by injection moulding. A closure part (11) forms a component of an adhesive closure having adhesive or hooking elements and is introducible as an insert part into an injection mould. In a back-injection process, the connecting part (3) forms a structural part containing the closure part (11) as an integral component.

What is claimed is: 
     
       1. A connecting part, comprising:
 a base body of a body synthetic material; 
 a unitary, one-piece fastening part of a fastener synthetic material and having at least one of adhesive or hooking elements on one side of said fastening part and constituting a component of a contact fastener on a first side of said base body, said synthetic materials being intrinsically bonded with one another along at least one planar extending connection surface by forming a common molten mass, by being molded directly and by being in direct contact with one another without other structure between said synthetic materials forming a planar fused joint between said synthetic materials, the body synthetic material and the fastener synthetic material being different synthetic plastics; and 
 an anchor on a second side said base body capable of fixing said base body with said fastening part thereon to a structure, said second side being opposite said first side. 
 
     
     
       2. A connecting part according to  claim 1  wherein
 said base body comprises a round disk; and 
 said anchor comprises an anchoring stud projecting from a central region of said round disk as an integral part thereof capable of retaining engagement with the structure. 
 
     
     
       3. A connecting part according to  claim 2  wherein
 said anchoring stud comprises at least one laterally protruding retaining element on said anchoring stud. 
 
     
     
       4. A connecting part according to  claim 3  wherein
 said retaining element comprises at least one of catches projecting laterally and diametrically relative to one another or an outer thread. 
 
     
     
       5. A tool for producing a connecting part, the tool comprising:
 a back injection molding first tool part having a first mold cavity capable of forming at least a large part of a base body of the connecting part with a body synthetic material; and 
 a back injection molding second tool part closing said first mold cavity and having a second mold cavity capable of receiving a fastener part of a fastener synthetic material, said first and second mold cavities being substantially of equal size the body synthetic material and the fastener synthetic material being different synthetic plastics forming a planar fused joint between said synthetic materials. 
 
     
     
       6. A tool according to  claim 5  wherein
 said second mold cavity comprises a positioner and retainer coupled to and capable of engaging, positioning and retaining the fastener part in the second mold cavity. 
 
     
     
       7. A tool according to  claim 6  wherein
 said second mold cavity comprises a contact surface on which the fastening part with a side thereof having at least one of adhesive or hooking elements; and 
 said positioner and retainer includes a mold part in a central region thereof and projects from a contact surface thereof, said mold part engaged in a recess in the fastener part designed for said mold part. 
 
     
     
       8. A tool according to  claim 7  wherein
 said mold part comprises a rectangular ridge having a contour adapted to the recess in the fastening part, said rectangular ridge having a projection in a form of a protuberance forming a depression in the base body during a back injection molding process. 
 
     
     
       9. A tool according to  claim 5  wherein
 an entire contact surface of said second mold cavity comprises micro-contouring in a pattern of fine depressions and projections. 
 
     
     
       10. A fastening system, comprising
 a component, having an attachment part connected thereto, said attachment part having first adhesive or hooking elements thereon; 
 a structure; and 
 a connecting part on said structure, said connecting part including a base body of a body synthetic material; 
 a unitary, one-piece fastening part of a fastener synthetic material and having at least one of adhesive or hooking elements on one side of said fastening part and constituting a component of a contact fastener on a first side of said base body, said synthetic materials being intrinsically bonded with one another along at least one planar extending connection surface by forming a common molten mass, by being molded directly and by being in direct contact with one another without any other structure between said synthetic materials forming a planar fused joint between said synthetic materials, the body synthetic material and the fastener synthetic material being different synthetic plastics; and 
 an anchor on a second side said base body fixing said base body with said fastening part thereon to said structure, said second side being opposite said first side, said adhesive or hooking elements on said connecting part corresponding and mating with said adhesive or hooking elements on said attachment part. 
 
     
     
       11. A fastening system according to  claim 10  wherein
 each of said attachment part and said connecting part are disk-shaped. 
 
     
     
       12. A fastening system according to  claim 10  wherein
 said component comprises a vehicle floor mat; and 
 said structure comprises a vehicle floor. 
 
     
     
       13. A connecting part according to  claim 1  wherein
 the base body comprises a knitted or woven fabric with the adhesive or hooking elements formed from filaments of the knitted or woven fabric. 
 
     
     
       14. A fastening system according to  claim 10  wherein
 said base body comprises a round disk; and 
 said anchor comprises an anchoring stud projecting from a central region of said round disk as an integral part thereof capable of retaining engagement with the structure. 
 
     
     
       15. A fastening system according to  claim 14  wherein
 said anchoring stud comprises at least one laterally protruding retaining element on said anchoring stud. 
 
     
     
       16. A fastening system according to  claim 15  wherein
 said retaining element comprises at least one of catches projecting laterally and diametrically relative to one another or an outer thread. 
 
     
     
       17. A fastening system according to  claim 10  wherein
 the base body comprises a knitted or woven fabric with the adhesive or hooking elements formed from filaments of the knitted or woven fabric.